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Validated Design and Analysis Tool for Small Vertical-Lift Unmanned Air Vehicle Noise Prediction

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX14CL75P
Agency Tracking Number: 145381
Amount: $124,973.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: A3.06
Solicitation Number: N/A
Solicitation Year: 2014
Award Year: 2014
Award Start Date (Proposal Award Date): 2014-06-20
Award End Date (Contract End Date): 2014-12-19
Small Business Information
14660 Latrobe Drive, Suite U3
Colorado Springs, CO 80921-2609
United States
DUNS: 099021086
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Sudarshana Koushik
 Principal Investigator
 (240) 997-1911
Business Contact
 William Eckert
Title: Operations Manager
Phone: (719) 646-4525
Research Institution

A procedure and supporting computer code for the prediction of noise that radiates from small, vertical lift UAV aircraft is proposed. The resulting building block procedure is theoretically based but is verified experimentally at several output stages. Noise source models for rotors, lift-fans, engines etc. are developed and validated through specially designed experiments and stored in a component digital library. For a given small lifting UAV configuration, these noise source models are combined into a hemispheric representation of the total radiated noise. The total radiated field is governed by the operating state of the vehicle as described by the governing performance model for the chosen configuration. Standard propagation effects and subjective weightings are used to radiate hemispheric noise levels to ground observers. The resulting computer program can be mathematically flown along prescribed trajectories to estimate ground noise radiation of several small UAV aircraft.

* Information listed above is at the time of submission. *

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